学術雑誌論文

学術雑誌論文

text

Journal of the American Chemical Society. 2025, 147(41), p. 37488-37496

Strain-Induced Quinoidal Character in a Carbon Nanoring Embedding Anthracene Units

American Chemical Society

英語

text

2025-10-07

https://doi.org/10.1021/jacs.5c11812

Nishiuchi T., Makihara Y., Kubo T.. Strain-Induced Quinoidal Character in a Carbon Nanoring Embedding Anthracene Units. Journal of the American Chemical Society 147, 37488 (2025); https://doi.org/10.1021/jacs.5c11812.

We report a carbon nanoring, [2.2]cyclo(9,10)anthrylene-paraphenylene ([2.2]CAPP), featuring alternating anthracene and phenylene units within a [4]cycloparaphenylene (CPP) framework. The molecule was synthesized via a six-step metal-free route and structurally characterized by single-crystal X-ray diffraction. The high ring strain induces significant distortion in the anthracene units, resulting in a quinoidal electronic structure with a suppressed aromaticity. Despite possessing a 16π-electron conjugation pathway, no global antiaromaticity was observed. This work demonstrates that strain engineering in carbon nanorings enables control over the aromaticity and open-shell character through rational molecular design.

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103663

Strain-Induced Quinoidal Character in a Carbon Nanoring Embedding Anthracene Units

American Chemical Society

英語

2025-10-07

Journal of the American Chemical Society

147

41

37488

37496

https://doi.org/10.1021/jacs.5c11812

https://hdl.handle.net/11094/103663